CONTROL SYSTEM FOR BRUSHLESS MOTOR

Title:

CONTROL SYSTEM FOR BRUSHLESS MOTOR

Document Type and Number:

Japanese Patent JP2002199774

Kind Code:

A

Abstract:

To provide a control system for brushless DC motor, capable of detecting the position of a rotor and driving a brushless DC motor, without the need for using a hole sensor or for monitoring counter electromotive force.

This control system (200) for brushless motor comprises the brushless motor (210), of which the rotor rotates by changing the polarity of drive current, a moving part (250) moving in a prescribed direction (256) according to the driving of the brushless motor (210), detection part (252, 254) of detection position changes of the moving part (250), and a control part (230), which is connected to the detecting parts (252, 254) and the brushless motor (210) and changes the polarity of the drive current, each time the moving part (250) moves by a prescribed distance.

More Like This:

JPS59220384	PRINTING SYSTEM
JPS63267577	PRINTER CAPABLE OF TWO-WAY PRINTINGS
JP3744273	METHOD AND APPARATUS FOR RECORDING, AND READABLE MEDIUM WITH PROGRAM THEREFOR RECORDED

Inventors:

UCHIUMI SHUNICHI
OKADA KOTARO
HASHIMOTO TSUTOMU

Application Number:

JP2000390842A

Publication Date:

July 12, 2002

Filing Date:

December 22, 2000

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MOTOROLA INC

International Classes:

B41J19/18; H02P6/06; H02P6/08; H02P6/16; (IPC1-7): H02P6/16; B41J19/18

Attorney, Agent or Firm:

Shinsuke Onuki (1 person outside)

Previous Patent: DRIVE CONTROL METHOD FOR COMPRESSOR MOTOR AND INVERTER FOR DRIVING COMPRESSOR

Next Patent: BRUSHLESS MOTOR DRIVE